Answer:
x=-1 and x=9
Step-by-step explanation:

=
=
=
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therefore x=9 and x=-1
Answer:
This question needs more information to answer. Likewise if it was a riddle then the question might be a trick. If you have forgot to add any additional information I advise you to fix it right away then reupload the question.
Step-by-step explanation:
Answer:
24% = 24/100 = 12/50 = 6/25
There are 25 students in this class and there are 6 girls.